In some embodiments, a wireless device transmits repetitions of a random access preamble across a plurality of system frames to a base station. The wireless device receives a downlink control information (DCI) including: a system frame number field indicating a system frame number, and a radio resource assignment. The wireless device receives a random access response via the radio resource assignment. In response to the system frame number indicating a system frame of the plurality of system frames, the wireless device determines that the random access response corresponds to the random access preamble. Then, the wireless device transmits one or more transport blocks via an uplink grant indicated by the random access response.
Legal claims defining the scope of protection, as filed with the USPTO.
3. The method of claim 1, further comprising monitoring, based on transmitting the repetitions of the random access preamble, a downlink control channel for the DCI with cyclic redundancy check (CRC) bits of the DCI being scrambled with a message B radio network temporary identifier (MSGB-RNTI).
4. The method of claim 3, wherein receiving the DCI comprises decoding the DCI based on the CRC bits of the DCI being scrambled with the MSGB-RNTI.
5. The method of claim 3, wherein the DCI is received during the monitoring of the downlink control channel.
6. The method of claim 1, wherein the radio resource assignment indicates one or more physical downlink shared channel (PDSCH) resources.
9. The method of claim 1, wherein transmitting comprises transmitting the repetitions that span across the plurality of system frames being consecutive system frames.
12. The wireless device of claim 10, wherein the instructions further cause the wireless device to monitor, based on transmitting the repetitions of the random access preamble, a downlink control channel for the DCI with cyclic redundancy check (CRC) bits of the DCI being scrambled with a message B radio network temporary identifier (MSGB-RNTI).
13. The wireless device of claim 12, wherein to receive the DCI, the instructions further cause the wireless device to decode the DCI based on the CRC bits of the DCI being scrambled with the MSGB-RNTI.
14. The wireless device of claim 12, wherein the DCI is received during the monitoring of the downlink control channel.
15. The wireless device of claim 10, wherein the radio resource assignment indicates one or more physical downlink shared channel (PDSCH) resources.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
August 3, 2021
July 30, 2024
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